Modul 1 Intro To Net Admin

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Mata Kuliah

Administrasi Jaringan

Politeknik Elektronikan Negeri Surabaya

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INTERNET

FIREWALL ROUTER -GTW

DMZ

PROXY (Squid ) All access to Internet must through Proxy

FIREWALL -IDS Linux bridge , iptables shorewall , snort , portsentry , acidlab CISCO Router

Using acl , block malware from outside

All Server in DMZ Manage using SSH , Secure Webmin

SQL Database (MySQL ) Access only from localhost (127.0.0.1)

Managable Switchs

Block unwanted user from port , manage from WEB

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MULTILAYER

SWITCH E-_MAIL %# $ ' )#$ # % ( % # #* FILESERVER EIS %# $ ' )#$ # % ( % # #* WWW DOMAIN Traffic Monitoring CACTI

Http://noc .eepis -its.edu

EEPISHOTSPOT

PROXY

LECTURER

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EMPLOYEE

STUDENTS Internal Server_{EEPIS -INFORMATION SYSTEM}

(EIS http ://eis.eepis -its.edu ) Http://fileserver .eepis -its .edu E-Mail server

HTTPS , SPAM (Spamassassin ), Virus Scanner (ClamAV )

L3 Switch Block malware on physical port from inside network

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User

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How many users are there?How many users are there?

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The level of the user's expertise.

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What are the users trying to do?

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Are they responsible or irresponsible?

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Who do the users know?

Hardware

Hardware Software

Software

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How many, how big and how complex?How many, how big and how complex?

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Is there a network?

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What

What System

System Administrator

Administrator Do

Do ?

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Conflict

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ensuring that the computing system runs correctly and as efficiently as ensuring that the computing system runs correctly and as efficiently as possible, and

possible, and

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ensuring that all users can and do use the computing system to carry out their required work in the easiest and most efficient manner

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Management will wish to restrict the amount of money spent on computer Management will wish to restrict the amount of money spent on computer

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Management will wish to restrict the amount of money spent on computer Management will wish to restrict the amount of money spent on computer systems.

systems.

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The users on the other hand will always want more disk space and faster The users on the other hand will always want more disk space and faster CPUs.

CPUs.

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The System Administrator must attempt to balance these two conflicting The System Administrator must attempt to balance these two conflicting aims

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